New mechanisms, therapies for acne considered

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Mon, 10/21/2019 - 09:59

– It used to be thought that acne begins with microcomedones, which go on to develop either inflammatory lesions or noninflammatory lesions, but more recent evidence has changed that perception, according to Linda Stein Gold, MD, director of dermatology research at Henry Ford Hospital, Detroit.

Biopsies of acne-prone areas have found that, before the development of microcomedones, “it appears that there is inflammation around the hair follicles,” Dr. Stein Gold said at the annual Coastal Dermatology Symposium. “All acne is inflammation acne,” and inflammation also persists, she added. Biopsies of scarred lesions, once considered postinflammatory, also have revealed persistent inflammation, she noted.

One study found that persistent scars can evolve from closed comedones, papules, and pustules, but the most common was a papule that turned into a postinflammatory lesion (J Drugs Dermatol 2017 Jun 1;16[6]:566-72). “So when patients come in and they have these red spots on their face, it’s not over. There’s still time to be aggressive because those inflammatory lesions are more likely to lead to scars than anything else,” Dr. Stein Gold said. “And we also know that papules that develop into scars do so because they’re there for a longer period of time. Those that develop scars are present about 10.5 days, compared with 6.6 days for those that don’t develop into scars.”

She went on to review some of the new treatments for acne that can be brought to bear in such cases. These include developments with topical retinoids that are aimed at improving delivery and reducing skin irritation.

A new topical retinoid, trifarotene cream, 0.005%, showed efficacy and tolerability for both the face and trunk in a recent phase 3 trial of patients with moderate facial and truncal acne and was recently approved for patients aged 9 years and older. In the study, about 30%-40% of people aged 9 years and older treated with once-daily trifarotene cream (Aklief) achieved clear or almost-clear status of the face at 12 weeks, vs. about 20% and 26%, of those on the vehicle cream (J Am Acad Dermatol. 2019 Jun;80[6]:1691-9).

The drug can also treat papules and pustules, nearly as well as it treats blackheads and whiteheads, according to Dr. Stein Gold. Like other retinoids, it produces some redness and scaling and rather than letting these adverse events discourage patients, she leans in. “I tell patients they’re going to have some sloughing of the skin the first 2 weeks. I tell them that people pay money for that. It’s called a chemical peel,” said Dr. Stein Gold, noting that patients respond well to this information.

If patients find the treatments too irritating, she advises them to avoid applying it to wet skin. They can also apply it every other night, or even less frequently, and then work up to more frequent use, she said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

Tazarotene is another topical retinoid that can be very irritating. A new lotion formulation of tazarotene 0.045% contains a lower dose than the 0.1% typically used in creams, and has similar efficacy but reduced irritation, Dr. Stein Gold said. In August, the manufacturer submitted an application for approval with the Food and Drug Administration for treatment of acne.

Dr. Stein Gold also talked about using retinoids to minimize scarring, referring to a study of patients with moderate and severe facial acne, and atrophic acne scars, comparing adapalene 0.3% plus benzoyl peroxide 2.5% gel on one side of the face and vehicle on the other side of the face for 24 weeks, followed by application of the active treatment to both sides of the face for 24 weeks. Treatment was associated with a reduction of atrophic acne scars at 24 weeks, which was maintained for up to 48 weeks (Am J Clin Dermatol. 2019 Oct[5];20:725-32).

“We can now say to patients, ‘Not only can I help you with your acne, but I can potentially even improve your atrophic scarring,’ ” she said.

Finally, she discussed clascoterone, a novel androgen receptor antagonist, which inhibits sebum production and prevents colonization by Cutibacterium acnes (formerly called Propionibacterium acnes) and subsequent inflammation. “It does a lot of good things in terms of the pathogenesis of acne, but more importantly, it is one of the first drugs that topically has been shown to decrease the production of sebum,” Dr. Stein Gold said. A 1% cream formulation is being studied for acne.

Dr. Stein Gold is a consultant, investigator, and/or speaker for Galderma, Ortho Derm, Sol Gel, Foamix, Cassiopea, and Almirall.

This publication and Global Academy for Medical Education are owned by the same parent company.

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– It used to be thought that acne begins with microcomedones, which go on to develop either inflammatory lesions or noninflammatory lesions, but more recent evidence has changed that perception, according to Linda Stein Gold, MD, director of dermatology research at Henry Ford Hospital, Detroit.

Biopsies of acne-prone areas have found that, before the development of microcomedones, “it appears that there is inflammation around the hair follicles,” Dr. Stein Gold said at the annual Coastal Dermatology Symposium. “All acne is inflammation acne,” and inflammation also persists, she added. Biopsies of scarred lesions, once considered postinflammatory, also have revealed persistent inflammation, she noted.

One study found that persistent scars can evolve from closed comedones, papules, and pustules, but the most common was a papule that turned into a postinflammatory lesion (J Drugs Dermatol 2017 Jun 1;16[6]:566-72). “So when patients come in and they have these red spots on their face, it’s not over. There’s still time to be aggressive because those inflammatory lesions are more likely to lead to scars than anything else,” Dr. Stein Gold said. “And we also know that papules that develop into scars do so because they’re there for a longer period of time. Those that develop scars are present about 10.5 days, compared with 6.6 days for those that don’t develop into scars.”

She went on to review some of the new treatments for acne that can be brought to bear in such cases. These include developments with topical retinoids that are aimed at improving delivery and reducing skin irritation.

A new topical retinoid, trifarotene cream, 0.005%, showed efficacy and tolerability for both the face and trunk in a recent phase 3 trial of patients with moderate facial and truncal acne and was recently approved for patients aged 9 years and older. In the study, about 30%-40% of people aged 9 years and older treated with once-daily trifarotene cream (Aklief) achieved clear or almost-clear status of the face at 12 weeks, vs. about 20% and 26%, of those on the vehicle cream (J Am Acad Dermatol. 2019 Jun;80[6]:1691-9).

The drug can also treat papules and pustules, nearly as well as it treats blackheads and whiteheads, according to Dr. Stein Gold. Like other retinoids, it produces some redness and scaling and rather than letting these adverse events discourage patients, she leans in. “I tell patients they’re going to have some sloughing of the skin the first 2 weeks. I tell them that people pay money for that. It’s called a chemical peel,” said Dr. Stein Gold, noting that patients respond well to this information.

If patients find the treatments too irritating, she advises them to avoid applying it to wet skin. They can also apply it every other night, or even less frequently, and then work up to more frequent use, she said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

Tazarotene is another topical retinoid that can be very irritating. A new lotion formulation of tazarotene 0.045% contains a lower dose than the 0.1% typically used in creams, and has similar efficacy but reduced irritation, Dr. Stein Gold said. In August, the manufacturer submitted an application for approval with the Food and Drug Administration for treatment of acne.

Dr. Stein Gold also talked about using retinoids to minimize scarring, referring to a study of patients with moderate and severe facial acne, and atrophic acne scars, comparing adapalene 0.3% plus benzoyl peroxide 2.5% gel on one side of the face and vehicle on the other side of the face for 24 weeks, followed by application of the active treatment to both sides of the face for 24 weeks. Treatment was associated with a reduction of atrophic acne scars at 24 weeks, which was maintained for up to 48 weeks (Am J Clin Dermatol. 2019 Oct[5];20:725-32).

“We can now say to patients, ‘Not only can I help you with your acne, but I can potentially even improve your atrophic scarring,’ ” she said.

Finally, she discussed clascoterone, a novel androgen receptor antagonist, which inhibits sebum production and prevents colonization by Cutibacterium acnes (formerly called Propionibacterium acnes) and subsequent inflammation. “It does a lot of good things in terms of the pathogenesis of acne, but more importantly, it is one of the first drugs that topically has been shown to decrease the production of sebum,” Dr. Stein Gold said. A 1% cream formulation is being studied for acne.

Dr. Stein Gold is a consultant, investigator, and/or speaker for Galderma, Ortho Derm, Sol Gel, Foamix, Cassiopea, and Almirall.

This publication and Global Academy for Medical Education are owned by the same parent company.

– It used to be thought that acne begins with microcomedones, which go on to develop either inflammatory lesions or noninflammatory lesions, but more recent evidence has changed that perception, according to Linda Stein Gold, MD, director of dermatology research at Henry Ford Hospital, Detroit.

Biopsies of acne-prone areas have found that, before the development of microcomedones, “it appears that there is inflammation around the hair follicles,” Dr. Stein Gold said at the annual Coastal Dermatology Symposium. “All acne is inflammation acne,” and inflammation also persists, she added. Biopsies of scarred lesions, once considered postinflammatory, also have revealed persistent inflammation, she noted.

One study found that persistent scars can evolve from closed comedones, papules, and pustules, but the most common was a papule that turned into a postinflammatory lesion (J Drugs Dermatol 2017 Jun 1;16[6]:566-72). “So when patients come in and they have these red spots on their face, it’s not over. There’s still time to be aggressive because those inflammatory lesions are more likely to lead to scars than anything else,” Dr. Stein Gold said. “And we also know that papules that develop into scars do so because they’re there for a longer period of time. Those that develop scars are present about 10.5 days, compared with 6.6 days for those that don’t develop into scars.”

She went on to review some of the new treatments for acne that can be brought to bear in such cases. These include developments with topical retinoids that are aimed at improving delivery and reducing skin irritation.

A new topical retinoid, trifarotene cream, 0.005%, showed efficacy and tolerability for both the face and trunk in a recent phase 3 trial of patients with moderate facial and truncal acne and was recently approved for patients aged 9 years and older. In the study, about 30%-40% of people aged 9 years and older treated with once-daily trifarotene cream (Aklief) achieved clear or almost-clear status of the face at 12 weeks, vs. about 20% and 26%, of those on the vehicle cream (J Am Acad Dermatol. 2019 Jun;80[6]:1691-9).

The drug can also treat papules and pustules, nearly as well as it treats blackheads and whiteheads, according to Dr. Stein Gold. Like other retinoids, it produces some redness and scaling and rather than letting these adverse events discourage patients, she leans in. “I tell patients they’re going to have some sloughing of the skin the first 2 weeks. I tell them that people pay money for that. It’s called a chemical peel,” said Dr. Stein Gold, noting that patients respond well to this information.

If patients find the treatments too irritating, she advises them to avoid applying it to wet skin. They can also apply it every other night, or even less frequently, and then work up to more frequent use, she said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

Tazarotene is another topical retinoid that can be very irritating. A new lotion formulation of tazarotene 0.045% contains a lower dose than the 0.1% typically used in creams, and has similar efficacy but reduced irritation, Dr. Stein Gold said. In August, the manufacturer submitted an application for approval with the Food and Drug Administration for treatment of acne.

Dr. Stein Gold also talked about using retinoids to minimize scarring, referring to a study of patients with moderate and severe facial acne, and atrophic acne scars, comparing adapalene 0.3% plus benzoyl peroxide 2.5% gel on one side of the face and vehicle on the other side of the face for 24 weeks, followed by application of the active treatment to both sides of the face for 24 weeks. Treatment was associated with a reduction of atrophic acne scars at 24 weeks, which was maintained for up to 48 weeks (Am J Clin Dermatol. 2019 Oct[5];20:725-32).

“We can now say to patients, ‘Not only can I help you with your acne, but I can potentially even improve your atrophic scarring,’ ” she said.

Finally, she discussed clascoterone, a novel androgen receptor antagonist, which inhibits sebum production and prevents colonization by Cutibacterium acnes (formerly called Propionibacterium acnes) and subsequent inflammation. “It does a lot of good things in terms of the pathogenesis of acne, but more importantly, it is one of the first drugs that topically has been shown to decrease the production of sebum,” Dr. Stein Gold said. A 1% cream formulation is being studied for acne.

Dr. Stein Gold is a consultant, investigator, and/or speaker for Galderma, Ortho Derm, Sol Gel, Foamix, Cassiopea, and Almirall.

This publication and Global Academy for Medical Education are owned by the same parent company.

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Adjunctive therapy is among the roles for topical agents in psoriasis

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Changed
Tue, 10/22/2019 - 11:27

 

Treatment of psoriasis has been profoundly impacted by the advent of biologic therapies, but “topical therapy is not dead,” Linda Stein Gold, MD, said at the annual Coastal Dermatology Symposium.

Dr. Linda Stein Gold of Henry Ford Hospital, detroit
Jim Kling/MDedge News
Dr. Linda Stein Gold

“We have to remember when we think back to our practice, how many topical prescriptions do we write, compared to preventive prescriptions? Probably most are topical,” said Dr. Stein Gold, director of dermatology clinical research at the Henry Ford Hospital Center, Detroit.

Topical agents have a place when a patient is doing well on treatment with a biologic but is not responding completely, she noted. One open-label, single-arm study looked at adjunctive calcipotriene 0.005%/betamethasone dipropionate 0.064% (Enstilar) foam, applied once daily for 4 week, then twice a week on consecutive days for 12 weeks in 25 patients with psoriasis who had a mean body surface area (BSA) of less than 5% but significant remaining disease despite treatment with biologics.

At week 4, 76% achieved a BSA of 1% or less and Physician’s Global Assessment score of 1 or less at week 4, as did 68% at week 16. This was compared with 12% and 4%, respectively (J Drugs Dermatol. 2018 Aug 1;17[8]:845-50). “They found that a good potent topical on top of a biologic does really well. That can really kick up the last part of the efficacy to get the patients almost to clear,” she observed.

At the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education, Dr. Stein Gold also discussed tazarotene, a topical retinoid approved by the Food and Drug Administration for treating psoriasis and is available as a 0.1% and 0.05% cream and gel. About 10%-30% of patients experience side effects with tazarotene, such as pruritus, stinging, and burning. Topical corticosteroids can help, which prompted development of a combined product, she noted.

She referred to a phase 2 study of patients with moderate to severe plaque psoriasis, which compared the fixed combination lotion formulation of tazarotene plus halobetasol propionate to the two components alone. The investigators found almost a 9% rate of treatment success with tazarotene alone, versus about 23% with halobetasol propionate alone and about 43% with the combined product. The combined individual effect of the two drugs was about 32%, so the 43% efficacy of the combined product had an absolute synergistic effect of about 11%, Dr. Stein Gold pointed out.

Two phase 3 trials of adults with moderate to severe psoriasis supported the phase 2 results of the combined lotion formulation (halobetasol 0.01% with tazarotene 0.045%), said Dr. Stein Gold, the first author (J Am Acad Dermatol. 2018 Aug;79[2]:287-93). Treatment success was defined as at least a 2-grade Investigator’s Global Assessment score and improvement from baseline and a score of “clear” or “almost clear.” In one of the studies, 36% of those on the combination versus 7% of those on the vehicle met this endpoint at week 8, as did 45% versus 13%, respectively, in the second study (P less than .001 for both studies).

Patients also had less itching, drying, and stinging than typically seen with tazarotene alone, Dr. Stein Gold said. In the studies, contact dermatitis was the most common side effect associated with treatment, reported in 6.3%

Dr. Stein Gold has received research support from Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, and Foamix. She has been a consultant for Sol-gel, Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, Foamix, Promis, Anacor, and Medimetriks. She has been on the speakers bureau of Galderma, Leo, Valeant, Novartis, Celgene, and Allergan. She has been a member of scientific advisory boards for Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, Foamix, and Promius.

This publication and Global Academy for Medical Education are owned by the same parent company.

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Treatment of psoriasis has been profoundly impacted by the advent of biologic therapies, but “topical therapy is not dead,” Linda Stein Gold, MD, said at the annual Coastal Dermatology Symposium.

Dr. Linda Stein Gold of Henry Ford Hospital, detroit
Jim Kling/MDedge News
Dr. Linda Stein Gold

“We have to remember when we think back to our practice, how many topical prescriptions do we write, compared to preventive prescriptions? Probably most are topical,” said Dr. Stein Gold, director of dermatology clinical research at the Henry Ford Hospital Center, Detroit.

Topical agents have a place when a patient is doing well on treatment with a biologic but is not responding completely, she noted. One open-label, single-arm study looked at adjunctive calcipotriene 0.005%/betamethasone dipropionate 0.064% (Enstilar) foam, applied once daily for 4 week, then twice a week on consecutive days for 12 weeks in 25 patients with psoriasis who had a mean body surface area (BSA) of less than 5% but significant remaining disease despite treatment with biologics.

At week 4, 76% achieved a BSA of 1% or less and Physician’s Global Assessment score of 1 or less at week 4, as did 68% at week 16. This was compared with 12% and 4%, respectively (J Drugs Dermatol. 2018 Aug 1;17[8]:845-50). “They found that a good potent topical on top of a biologic does really well. That can really kick up the last part of the efficacy to get the patients almost to clear,” she observed.

At the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education, Dr. Stein Gold also discussed tazarotene, a topical retinoid approved by the Food and Drug Administration for treating psoriasis and is available as a 0.1% and 0.05% cream and gel. About 10%-30% of patients experience side effects with tazarotene, such as pruritus, stinging, and burning. Topical corticosteroids can help, which prompted development of a combined product, she noted.

She referred to a phase 2 study of patients with moderate to severe plaque psoriasis, which compared the fixed combination lotion formulation of tazarotene plus halobetasol propionate to the two components alone. The investigators found almost a 9% rate of treatment success with tazarotene alone, versus about 23% with halobetasol propionate alone and about 43% with the combined product. The combined individual effect of the two drugs was about 32%, so the 43% efficacy of the combined product had an absolute synergistic effect of about 11%, Dr. Stein Gold pointed out.

Two phase 3 trials of adults with moderate to severe psoriasis supported the phase 2 results of the combined lotion formulation (halobetasol 0.01% with tazarotene 0.045%), said Dr. Stein Gold, the first author (J Am Acad Dermatol. 2018 Aug;79[2]:287-93). Treatment success was defined as at least a 2-grade Investigator’s Global Assessment score and improvement from baseline and a score of “clear” or “almost clear.” In one of the studies, 36% of those on the combination versus 7% of those on the vehicle met this endpoint at week 8, as did 45% versus 13%, respectively, in the second study (P less than .001 for both studies).

Patients also had less itching, drying, and stinging than typically seen with tazarotene alone, Dr. Stein Gold said. In the studies, contact dermatitis was the most common side effect associated with treatment, reported in 6.3%

Dr. Stein Gold has received research support from Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, and Foamix. She has been a consultant for Sol-gel, Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, Foamix, Promis, Anacor, and Medimetriks. She has been on the speakers bureau of Galderma, Leo, Valeant, Novartis, Celgene, and Allergan. She has been a member of scientific advisory boards for Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, Foamix, and Promius.

This publication and Global Academy for Medical Education are owned by the same parent company.

 

Treatment of psoriasis has been profoundly impacted by the advent of biologic therapies, but “topical therapy is not dead,” Linda Stein Gold, MD, said at the annual Coastal Dermatology Symposium.

Dr. Linda Stein Gold of Henry Ford Hospital, detroit
Jim Kling/MDedge News
Dr. Linda Stein Gold

“We have to remember when we think back to our practice, how many topical prescriptions do we write, compared to preventive prescriptions? Probably most are topical,” said Dr. Stein Gold, director of dermatology clinical research at the Henry Ford Hospital Center, Detroit.

Topical agents have a place when a patient is doing well on treatment with a biologic but is not responding completely, she noted. One open-label, single-arm study looked at adjunctive calcipotriene 0.005%/betamethasone dipropionate 0.064% (Enstilar) foam, applied once daily for 4 week, then twice a week on consecutive days for 12 weeks in 25 patients with psoriasis who had a mean body surface area (BSA) of less than 5% but significant remaining disease despite treatment with biologics.

At week 4, 76% achieved a BSA of 1% or less and Physician’s Global Assessment score of 1 or less at week 4, as did 68% at week 16. This was compared with 12% and 4%, respectively (J Drugs Dermatol. 2018 Aug 1;17[8]:845-50). “They found that a good potent topical on top of a biologic does really well. That can really kick up the last part of the efficacy to get the patients almost to clear,” she observed.

At the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education, Dr. Stein Gold also discussed tazarotene, a topical retinoid approved by the Food and Drug Administration for treating psoriasis and is available as a 0.1% and 0.05% cream and gel. About 10%-30% of patients experience side effects with tazarotene, such as pruritus, stinging, and burning. Topical corticosteroids can help, which prompted development of a combined product, she noted.

She referred to a phase 2 study of patients with moderate to severe plaque psoriasis, which compared the fixed combination lotion formulation of tazarotene plus halobetasol propionate to the two components alone. The investigators found almost a 9% rate of treatment success with tazarotene alone, versus about 23% with halobetasol propionate alone and about 43% with the combined product. The combined individual effect of the two drugs was about 32%, so the 43% efficacy of the combined product had an absolute synergistic effect of about 11%, Dr. Stein Gold pointed out.

Two phase 3 trials of adults with moderate to severe psoriasis supported the phase 2 results of the combined lotion formulation (halobetasol 0.01% with tazarotene 0.045%), said Dr. Stein Gold, the first author (J Am Acad Dermatol. 2018 Aug;79[2]:287-93). Treatment success was defined as at least a 2-grade Investigator’s Global Assessment score and improvement from baseline and a score of “clear” or “almost clear.” In one of the studies, 36% of those on the combination versus 7% of those on the vehicle met this endpoint at week 8, as did 45% versus 13%, respectively, in the second study (P less than .001 for both studies).

Patients also had less itching, drying, and stinging than typically seen with tazarotene alone, Dr. Stein Gold said. In the studies, contact dermatitis was the most common side effect associated with treatment, reported in 6.3%

Dr. Stein Gold has received research support from Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, and Foamix. She has been a consultant for Sol-gel, Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, Foamix, Promis, Anacor, and Medimetriks. She has been on the speakers bureau of Galderma, Leo, Valeant, Novartis, Celgene, and Allergan. She has been a member of scientific advisory boards for Galderma, Leo, Novan, Valeant, Dermira, Novartis, Celgene, Allergan, Foamix, and Promius.

This publication and Global Academy for Medical Education are owned by the same parent company.

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Treating AKs with PDT, other options

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Fri, 10/18/2019 - 08:37

 

– While current treatments for actinic keratosis include variations on light therapy and strategies such as field cancerization, the nitrogen tank in the corner of the office is likely to stay, David Pariser, MD, said during a presentation at the annual Coastal Dermatology Symposium.

“My personal view is that, no matter how good other treatments are eventually going to be, we’re never going to give that up,” Dr. Pariser, professor of dermatology at Eastern Virginia Medical School, Norfolk, said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

During the presentation, he emphasized that it isn’t always clear which actinic keratosis (AK) should be treated and which can be left alone, since most AKs don’t progress to squamous cell carcinoma (SCC). “We know that most squamous cell carcinomas arise near AKs, and many of them have histologic evidence” of AK/SCC continuum at the periphery, he said. Sun protection reduces the incidence of AKs and the incidence of nonmelanoma skin cancer, “so it’s a logical conclusion that treating AKs reduces the development of SCCs, but there are no data to show that.”

Generally, treatment decisions are made based on the presence of symptoms, location, or appearance; if the area is irritated; or there is a progressive or unusual appearance, especially if hyperkeratotic. Physician or patient concerns about cancer can prompt treatment, as should a history of multiple skin cancers or the presence of immunosuppression, he said.

Treatment options include cryosurgery, surgery, topical agents, and photodynamic therapy (PDT); Dr. Pariser focused on the latter because it is a special interest of his.

Field cancerization is based on the idea that a broad area of cells may be at risk for developing into SCC, rather than just individual AKs. Treatment with methyl 5-aminolevulinate (MAL) can reveal the extent of a problem. In some patients, “you can see a lot of fluorescence in areas that look reasonably clinically normal. So this is a piece of evidence of this field cancerization, that maybe we shouldn’t be treating individual AKs, but larger areas,” Dr. Pariser said.

With PDT, there has been some debate about how long to leave the photosensitizer on the skin before applying the light. The longer it remains, the more it spreads to nerves, which can lead to pain during the procedure. A clinical trial comparing 1-, 2-, and 3-hour wait times showed no difference in efficacy. “So 1 hour is what I do for AKs, that’s it,” Dr. Pariser said.

There are two Food and Drug Administration–approved PDT systems, a blue-light system combined with aminolevulinic acid (ALA) and a newer red-light system combined with a nanoemulsion of ALA 7.8% and a proprietary 635-nm red LED light. The nanoemulsion has the theoretical advantage in that it can penetrate more deeply into the epidermis, though this isn’t really an issue when treating AKs, according to Dr. Pariser.

A study comparing nanoemulsion of ALA, compared with a MAL cream, found the nanoemulsion to be superior in achieving complete clearance of all lesions at 12 weeks (78.2% vs. 64.2%; P less than .05). Both treatments achieved best efficacy with LED lamps, and the proprietary red light may reduce pain by allowing use of lower light intensity (Br J Dermatol. 2012 Jan; 166[1]:137-46).

Another study, Dr. Pariser said, looked at whether occlusion during drug incubation improves outcomes of blue light ALA-PDT (J Drugs Dermatol. 2012;11[12]:1483-9). Patients underwent split occlusion on the upper extremities before undergoing blue-light treatment. The median clearance rate of AKs at 8 weeks was higher with occlusion, compared with the nonoccluded areas (75% vs. 47%; P = .006), and at 12 weeks, after a second treatment (89% vs. 70%; P = .00029). There was a higher efficacy with a 3-hour incubation period, compared with studies using a 2-hour incubation period.

Application of heat can also boost success rates by increasing the synthesis of the photoactive agent, Dr. Pariser said. One study found that a simple heating pad applied to the area treated with ALA-PDT and blue light led to an 88% reduction in lesions at 8 and 24 weeks, compared with a reduction of 71% at 8 weeks and 68% at 24 weeks without heat (P less than .0001). “So if you want to give PDT a little extra oomph, add occlusion and heat,” he commented.

He also pointed out the availability of a new 4% 5-fluorouracil cream that contains peanut oil, which has similar efficacy to 5% 5-fluorouracil cream but has been associated with less pruritus, stinging/burning, edema, crusting, scaling/dryness, erosion, and erythema (J Drugs Dermatol. 2016 Oct 1;15[10]: 1218-24).

Dr. Pariser is an investigator and consultant for DUSA/Sun Pharma, Photocure, LEO Pharma, and Biofrontera. This publication and Global Academy for Medical Education are owned by the same parent company.

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– While current treatments for actinic keratosis include variations on light therapy and strategies such as field cancerization, the nitrogen tank in the corner of the office is likely to stay, David Pariser, MD, said during a presentation at the annual Coastal Dermatology Symposium.

“My personal view is that, no matter how good other treatments are eventually going to be, we’re never going to give that up,” Dr. Pariser, professor of dermatology at Eastern Virginia Medical School, Norfolk, said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

During the presentation, he emphasized that it isn’t always clear which actinic keratosis (AK) should be treated and which can be left alone, since most AKs don’t progress to squamous cell carcinoma (SCC). “We know that most squamous cell carcinomas arise near AKs, and many of them have histologic evidence” of AK/SCC continuum at the periphery, he said. Sun protection reduces the incidence of AKs and the incidence of nonmelanoma skin cancer, “so it’s a logical conclusion that treating AKs reduces the development of SCCs, but there are no data to show that.”

Generally, treatment decisions are made based on the presence of symptoms, location, or appearance; if the area is irritated; or there is a progressive or unusual appearance, especially if hyperkeratotic. Physician or patient concerns about cancer can prompt treatment, as should a history of multiple skin cancers or the presence of immunosuppression, he said.

Treatment options include cryosurgery, surgery, topical agents, and photodynamic therapy (PDT); Dr. Pariser focused on the latter because it is a special interest of his.

Field cancerization is based on the idea that a broad area of cells may be at risk for developing into SCC, rather than just individual AKs. Treatment with methyl 5-aminolevulinate (MAL) can reveal the extent of a problem. In some patients, “you can see a lot of fluorescence in areas that look reasonably clinically normal. So this is a piece of evidence of this field cancerization, that maybe we shouldn’t be treating individual AKs, but larger areas,” Dr. Pariser said.

With PDT, there has been some debate about how long to leave the photosensitizer on the skin before applying the light. The longer it remains, the more it spreads to nerves, which can lead to pain during the procedure. A clinical trial comparing 1-, 2-, and 3-hour wait times showed no difference in efficacy. “So 1 hour is what I do for AKs, that’s it,” Dr. Pariser said.

There are two Food and Drug Administration–approved PDT systems, a blue-light system combined with aminolevulinic acid (ALA) and a newer red-light system combined with a nanoemulsion of ALA 7.8% and a proprietary 635-nm red LED light. The nanoemulsion has the theoretical advantage in that it can penetrate more deeply into the epidermis, though this isn’t really an issue when treating AKs, according to Dr. Pariser.

A study comparing nanoemulsion of ALA, compared with a MAL cream, found the nanoemulsion to be superior in achieving complete clearance of all lesions at 12 weeks (78.2% vs. 64.2%; P less than .05). Both treatments achieved best efficacy with LED lamps, and the proprietary red light may reduce pain by allowing use of lower light intensity (Br J Dermatol. 2012 Jan; 166[1]:137-46).

Another study, Dr. Pariser said, looked at whether occlusion during drug incubation improves outcomes of blue light ALA-PDT (J Drugs Dermatol. 2012;11[12]:1483-9). Patients underwent split occlusion on the upper extremities before undergoing blue-light treatment. The median clearance rate of AKs at 8 weeks was higher with occlusion, compared with the nonoccluded areas (75% vs. 47%; P = .006), and at 12 weeks, after a second treatment (89% vs. 70%; P = .00029). There was a higher efficacy with a 3-hour incubation period, compared with studies using a 2-hour incubation period.

Application of heat can also boost success rates by increasing the synthesis of the photoactive agent, Dr. Pariser said. One study found that a simple heating pad applied to the area treated with ALA-PDT and blue light led to an 88% reduction in lesions at 8 and 24 weeks, compared with a reduction of 71% at 8 weeks and 68% at 24 weeks without heat (P less than .0001). “So if you want to give PDT a little extra oomph, add occlusion and heat,” he commented.

He also pointed out the availability of a new 4% 5-fluorouracil cream that contains peanut oil, which has similar efficacy to 5% 5-fluorouracil cream but has been associated with less pruritus, stinging/burning, edema, crusting, scaling/dryness, erosion, and erythema (J Drugs Dermatol. 2016 Oct 1;15[10]: 1218-24).

Dr. Pariser is an investigator and consultant for DUSA/Sun Pharma, Photocure, LEO Pharma, and Biofrontera. This publication and Global Academy for Medical Education are owned by the same parent company.

 

– While current treatments for actinic keratosis include variations on light therapy and strategies such as field cancerization, the nitrogen tank in the corner of the office is likely to stay, David Pariser, MD, said during a presentation at the annual Coastal Dermatology Symposium.

“My personal view is that, no matter how good other treatments are eventually going to be, we’re never going to give that up,” Dr. Pariser, professor of dermatology at Eastern Virginia Medical School, Norfolk, said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

During the presentation, he emphasized that it isn’t always clear which actinic keratosis (AK) should be treated and which can be left alone, since most AKs don’t progress to squamous cell carcinoma (SCC). “We know that most squamous cell carcinomas arise near AKs, and many of them have histologic evidence” of AK/SCC continuum at the periphery, he said. Sun protection reduces the incidence of AKs and the incidence of nonmelanoma skin cancer, “so it’s a logical conclusion that treating AKs reduces the development of SCCs, but there are no data to show that.”

Generally, treatment decisions are made based on the presence of symptoms, location, or appearance; if the area is irritated; or there is a progressive or unusual appearance, especially if hyperkeratotic. Physician or patient concerns about cancer can prompt treatment, as should a history of multiple skin cancers or the presence of immunosuppression, he said.

Treatment options include cryosurgery, surgery, topical agents, and photodynamic therapy (PDT); Dr. Pariser focused on the latter because it is a special interest of his.

Field cancerization is based on the idea that a broad area of cells may be at risk for developing into SCC, rather than just individual AKs. Treatment with methyl 5-aminolevulinate (MAL) can reveal the extent of a problem. In some patients, “you can see a lot of fluorescence in areas that look reasonably clinically normal. So this is a piece of evidence of this field cancerization, that maybe we shouldn’t be treating individual AKs, but larger areas,” Dr. Pariser said.

With PDT, there has been some debate about how long to leave the photosensitizer on the skin before applying the light. The longer it remains, the more it spreads to nerves, which can lead to pain during the procedure. A clinical trial comparing 1-, 2-, and 3-hour wait times showed no difference in efficacy. “So 1 hour is what I do for AKs, that’s it,” Dr. Pariser said.

There are two Food and Drug Administration–approved PDT systems, a blue-light system combined with aminolevulinic acid (ALA) and a newer red-light system combined with a nanoemulsion of ALA 7.8% and a proprietary 635-nm red LED light. The nanoemulsion has the theoretical advantage in that it can penetrate more deeply into the epidermis, though this isn’t really an issue when treating AKs, according to Dr. Pariser.

A study comparing nanoemulsion of ALA, compared with a MAL cream, found the nanoemulsion to be superior in achieving complete clearance of all lesions at 12 weeks (78.2% vs. 64.2%; P less than .05). Both treatments achieved best efficacy with LED lamps, and the proprietary red light may reduce pain by allowing use of lower light intensity (Br J Dermatol. 2012 Jan; 166[1]:137-46).

Another study, Dr. Pariser said, looked at whether occlusion during drug incubation improves outcomes of blue light ALA-PDT (J Drugs Dermatol. 2012;11[12]:1483-9). Patients underwent split occlusion on the upper extremities before undergoing blue-light treatment. The median clearance rate of AKs at 8 weeks was higher with occlusion, compared with the nonoccluded areas (75% vs. 47%; P = .006), and at 12 weeks, after a second treatment (89% vs. 70%; P = .00029). There was a higher efficacy with a 3-hour incubation period, compared with studies using a 2-hour incubation period.

Application of heat can also boost success rates by increasing the synthesis of the photoactive agent, Dr. Pariser said. One study found that a simple heating pad applied to the area treated with ALA-PDT and blue light led to an 88% reduction in lesions at 8 and 24 weeks, compared with a reduction of 71% at 8 weeks and 68% at 24 weeks without heat (P less than .0001). “So if you want to give PDT a little extra oomph, add occlusion and heat,” he commented.

He also pointed out the availability of a new 4% 5-fluorouracil cream that contains peanut oil, which has similar efficacy to 5% 5-fluorouracil cream but has been associated with less pruritus, stinging/burning, edema, crusting, scaling/dryness, erosion, and erythema (J Drugs Dermatol. 2016 Oct 1;15[10]: 1218-24).

Dr. Pariser is an investigator and consultant for DUSA/Sun Pharma, Photocure, LEO Pharma, and Biofrontera. This publication and Global Academy for Medical Education are owned by the same parent company.

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Spotting immunodeficiency in the pediatric dermatology clinic

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– Immunodeficiency in children can look much like eczematous dermatitis. Be aware of this potential diagnosis.

Dr. Markus Boos, University of Washington, Seattle
Jim Kling/MDedge News
Dr. Markus Boos

“Although it is important to know these are extremely rare conditions, you don’t want to miss them because you can literally change that child’s life,” Markus Boos, MD, an assistant professor of pediatrics at the University of Washington, Seattle, said in an interview at the annual Coastal Dermatology Symposium.

He outlined some key clinical features and patient history that can raise a potential red flag.

Many primary immunodeficiencies present with a scaly red rash, but these can often be distinguished if you take a thoughtful history, and you really spend time looking at the morphology and distribution of the rash,” Dr. Boos said.

The distribution of the rash also can be distinctive. For example, hyper-IgE syndrome shows up as little red pus bumps that are widespread, but specifically occur on the face and other areas that usually aren’t affected eczematous dermatitis. “You should really focus on that, and not just assume that because something [like eczematous dermatitis] is common, everything has to be that,” Dr. Boos said at the meeting, which was jointly presented by the University of Louisville and Global Academy for Medical Education.

He also warned about a false positive. You may be alerted to high eosinophil and high IgE levels determined by a primary care physician’s tests, but these aren’t necessarily a strong indicator of hyper-IgE syndrome, he said. “Many inflammatory conditions in children have high levels of both those, so they aren’t a distinguishing feature of any one of them. You can reassure a family that the child doesn’t necessarily have hyper-IgE syndrome. There’s this leap [people take] because it sounds like the name, but it’s not a very specific marker of that particular condition.”

Patient history of an immunodeficiency patient in general obviously can include a history of infections, although a high rate of ear infections is pretty typical among children. The key is to ask yourself: “At what point does it seem like something that is beyond normal?” Dr. Boos said. Infections that required hospitalizations or were invasive or required antibiotics all are potential clues. Other factors to consider include growth and development issues such as frequent diarrhea or failure to thrive, or family members with frequent infections or who died prematurely.

Hyper-IgE patients also may have a prominent forehead and chin, deep-set eyes, broad nose, thickened facial skin, or a high arched palate. These physical features become more prominent by adolescence. For a reference for physical features go to https://primaryimmune.org/about-primary-immunodeficiencies/specific-disease-types/hyper-ige-syndrome.

Clinical features of various immunodeficiencies include the following:

  • Papulopustular eruption with frequent infections and musculoskeletal changes. This presentation is suggestive of autosomal dominant hyper-IgE syndrome. These children have a “heterozygous mutation in the gene encoding the transcription factor STAT3,” according to the Immune Deficiency Foundation.
  • Severe atopy with extensive warts/molluscum/herpes simplex virus. This presentation is suggestive of autosomal recessive hyper-IgE syndrome. These children have “mutations and deletions in the DOCK8 gene,” the Immune Deficiency Foundation asserts.
  • Diffusely red baby. Consider immunodeficiency if the patient also has experienced failure to thrive and/or diarrhea, or has a history of infection. High IgE levels are not a strong signal of hyper-IgE syndrome.
  • Severe eczematous (or psoriasiform) dermatitis with chronic diarrhea, failure to thrive, and diabetes or hypothyroidism. This presentation is suggestive of IPEX syndrome (immune dysregulation, polyendocrinopathy, enteropathy, X-linked).
  • Atopic dermatitis with bloody diarrhea, thrombocytopenia, recurrent ear infections. This presentation is indicative of Wiskott-Aldrich syndrome.

Dr. Boos is personally familiar with primary immunodeficiencies because he works closely with an immunology clinic, which also means he has a lot of support. Most clinicians diagnosing these patients don’t. If you find yourself with a case, “call in the troops,” he advised. You should be connected to a rheumatologist when there’s evidence of autoimmune disease, and hematologists or oncologists for the treatment, which requires a bone marrow transplant in the case of autosomal recessive hyper-IgE syndrome. Otherwise treatment is largely supportive for this immunodeficiency.

Having that network can be invaluable in managing what can be a very complicated patient. “If you ever feel uncomfortable making a decision about their care, discussing it with those other providers can give you some peace of mind,” he said.

Dr. Boos disclosed that he is a clinical researcher for Regeneron. This publication and Global Academy for Medical Education are owned by the same parent company.

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– Immunodeficiency in children can look much like eczematous dermatitis. Be aware of this potential diagnosis.

Dr. Markus Boos, University of Washington, Seattle
Jim Kling/MDedge News
Dr. Markus Boos

“Although it is important to know these are extremely rare conditions, you don’t want to miss them because you can literally change that child’s life,” Markus Boos, MD, an assistant professor of pediatrics at the University of Washington, Seattle, said in an interview at the annual Coastal Dermatology Symposium.

He outlined some key clinical features and patient history that can raise a potential red flag.

Many primary immunodeficiencies present with a scaly red rash, but these can often be distinguished if you take a thoughtful history, and you really spend time looking at the morphology and distribution of the rash,” Dr. Boos said.

The distribution of the rash also can be distinctive. For example, hyper-IgE syndrome shows up as little red pus bumps that are widespread, but specifically occur on the face and other areas that usually aren’t affected eczematous dermatitis. “You should really focus on that, and not just assume that because something [like eczematous dermatitis] is common, everything has to be that,” Dr. Boos said at the meeting, which was jointly presented by the University of Louisville and Global Academy for Medical Education.

He also warned about a false positive. You may be alerted to high eosinophil and high IgE levels determined by a primary care physician’s tests, but these aren’t necessarily a strong indicator of hyper-IgE syndrome, he said. “Many inflammatory conditions in children have high levels of both those, so they aren’t a distinguishing feature of any one of them. You can reassure a family that the child doesn’t necessarily have hyper-IgE syndrome. There’s this leap [people take] because it sounds like the name, but it’s not a very specific marker of that particular condition.”

Patient history of an immunodeficiency patient in general obviously can include a history of infections, although a high rate of ear infections is pretty typical among children. The key is to ask yourself: “At what point does it seem like something that is beyond normal?” Dr. Boos said. Infections that required hospitalizations or were invasive or required antibiotics all are potential clues. Other factors to consider include growth and development issues such as frequent diarrhea or failure to thrive, or family members with frequent infections or who died prematurely.

Hyper-IgE patients also may have a prominent forehead and chin, deep-set eyes, broad nose, thickened facial skin, or a high arched palate. These physical features become more prominent by adolescence. For a reference for physical features go to https://primaryimmune.org/about-primary-immunodeficiencies/specific-disease-types/hyper-ige-syndrome.

Clinical features of various immunodeficiencies include the following:

  • Papulopustular eruption with frequent infections and musculoskeletal changes. This presentation is suggestive of autosomal dominant hyper-IgE syndrome. These children have a “heterozygous mutation in the gene encoding the transcription factor STAT3,” according to the Immune Deficiency Foundation.
  • Severe atopy with extensive warts/molluscum/herpes simplex virus. This presentation is suggestive of autosomal recessive hyper-IgE syndrome. These children have “mutations and deletions in the DOCK8 gene,” the Immune Deficiency Foundation asserts.
  • Diffusely red baby. Consider immunodeficiency if the patient also has experienced failure to thrive and/or diarrhea, or has a history of infection. High IgE levels are not a strong signal of hyper-IgE syndrome.
  • Severe eczematous (or psoriasiform) dermatitis with chronic diarrhea, failure to thrive, and diabetes or hypothyroidism. This presentation is suggestive of IPEX syndrome (immune dysregulation, polyendocrinopathy, enteropathy, X-linked).
  • Atopic dermatitis with bloody diarrhea, thrombocytopenia, recurrent ear infections. This presentation is indicative of Wiskott-Aldrich syndrome.

Dr. Boos is personally familiar with primary immunodeficiencies because he works closely with an immunology clinic, which also means he has a lot of support. Most clinicians diagnosing these patients don’t. If you find yourself with a case, “call in the troops,” he advised. You should be connected to a rheumatologist when there’s evidence of autoimmune disease, and hematologists or oncologists for the treatment, which requires a bone marrow transplant in the case of autosomal recessive hyper-IgE syndrome. Otherwise treatment is largely supportive for this immunodeficiency.

Having that network can be invaluable in managing what can be a very complicated patient. “If you ever feel uncomfortable making a decision about their care, discussing it with those other providers can give you some peace of mind,” he said.

Dr. Boos disclosed that he is a clinical researcher for Regeneron. This publication and Global Academy for Medical Education are owned by the same parent company.

 

– Immunodeficiency in children can look much like eczematous dermatitis. Be aware of this potential diagnosis.

Dr. Markus Boos, University of Washington, Seattle
Jim Kling/MDedge News
Dr. Markus Boos

“Although it is important to know these are extremely rare conditions, you don’t want to miss them because you can literally change that child’s life,” Markus Boos, MD, an assistant professor of pediatrics at the University of Washington, Seattle, said in an interview at the annual Coastal Dermatology Symposium.

He outlined some key clinical features and patient history that can raise a potential red flag.

Many primary immunodeficiencies present with a scaly red rash, but these can often be distinguished if you take a thoughtful history, and you really spend time looking at the morphology and distribution of the rash,” Dr. Boos said.

The distribution of the rash also can be distinctive. For example, hyper-IgE syndrome shows up as little red pus bumps that are widespread, but specifically occur on the face and other areas that usually aren’t affected eczematous dermatitis. “You should really focus on that, and not just assume that because something [like eczematous dermatitis] is common, everything has to be that,” Dr. Boos said at the meeting, which was jointly presented by the University of Louisville and Global Academy for Medical Education.

He also warned about a false positive. You may be alerted to high eosinophil and high IgE levels determined by a primary care physician’s tests, but these aren’t necessarily a strong indicator of hyper-IgE syndrome, he said. “Many inflammatory conditions in children have high levels of both those, so they aren’t a distinguishing feature of any one of them. You can reassure a family that the child doesn’t necessarily have hyper-IgE syndrome. There’s this leap [people take] because it sounds like the name, but it’s not a very specific marker of that particular condition.”

Patient history of an immunodeficiency patient in general obviously can include a history of infections, although a high rate of ear infections is pretty typical among children. The key is to ask yourself: “At what point does it seem like something that is beyond normal?” Dr. Boos said. Infections that required hospitalizations or were invasive or required antibiotics all are potential clues. Other factors to consider include growth and development issues such as frequent diarrhea or failure to thrive, or family members with frequent infections or who died prematurely.

Hyper-IgE patients also may have a prominent forehead and chin, deep-set eyes, broad nose, thickened facial skin, or a high arched palate. These physical features become more prominent by adolescence. For a reference for physical features go to https://primaryimmune.org/about-primary-immunodeficiencies/specific-disease-types/hyper-ige-syndrome.

Clinical features of various immunodeficiencies include the following:

  • Papulopustular eruption with frequent infections and musculoskeletal changes. This presentation is suggestive of autosomal dominant hyper-IgE syndrome. These children have a “heterozygous mutation in the gene encoding the transcription factor STAT3,” according to the Immune Deficiency Foundation.
  • Severe atopy with extensive warts/molluscum/herpes simplex virus. This presentation is suggestive of autosomal recessive hyper-IgE syndrome. These children have “mutations and deletions in the DOCK8 gene,” the Immune Deficiency Foundation asserts.
  • Diffusely red baby. Consider immunodeficiency if the patient also has experienced failure to thrive and/or diarrhea, or has a history of infection. High IgE levels are not a strong signal of hyper-IgE syndrome.
  • Severe eczematous (or psoriasiform) dermatitis with chronic diarrhea, failure to thrive, and diabetes or hypothyroidism. This presentation is suggestive of IPEX syndrome (immune dysregulation, polyendocrinopathy, enteropathy, X-linked).
  • Atopic dermatitis with bloody diarrhea, thrombocytopenia, recurrent ear infections. This presentation is indicative of Wiskott-Aldrich syndrome.

Dr. Boos is personally familiar with primary immunodeficiencies because he works closely with an immunology clinic, which also means he has a lot of support. Most clinicians diagnosing these patients don’t. If you find yourself with a case, “call in the troops,” he advised. You should be connected to a rheumatologist when there’s evidence of autoimmune disease, and hematologists or oncologists for the treatment, which requires a bone marrow transplant in the case of autosomal recessive hyper-IgE syndrome. Otherwise treatment is largely supportive for this immunodeficiency.

Having that network can be invaluable in managing what can be a very complicated patient. “If you ever feel uncomfortable making a decision about their care, discussing it with those other providers can give you some peace of mind,” he said.

Dr. Boos disclosed that he is a clinical researcher for Regeneron. This publication and Global Academy for Medical Education are owned by the same parent company.

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Hyperhidrosis treatment options update

Article Type
Changed
Thu, 10/17/2019 - 07:56

 

After years of relying on oral anticholinergics for treating hyperhidrosis, more options have recently become available, David Pariser, MD, said at the annual Coastal Dermatology Symposium.

sweaty many
Koldunov/Thinkstock

Hyperhidrosis is among the dermatological conditions that have the greatest impact on quality of life, and it can be particularly concerning to teens, said Dr. Pariser, professor of dermatology at Eastern Virginia Medical School, Norfolk. He referred to some new developments for an old, often misunderstood, standby: antiperspirants. “I am amazed that many people do not know the difference between an antiperspirant and a deodorant,” he said, pointing out that antiperspirants contain active ingredients – aluminum and zirconium salts – that block sweat glands, while deodorants contain a masking fragrance.

There are new-generation topical antiperspirants available over the counter, with descriptions that include “clinical strength” or “clinical protection” on the labels; they come in a box and cost about twice as much as standard products. “But they are better, and they work just as well as some of the commercial preparations,” Dr. Pariser said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

One issue he highlighted was that antiperspirants are often misapplied. They shouldn’t be applied on wet skin because they react with water to create hydrochloric acid, which can irritate the skin, he said. The best time to apply an antiperspirant is right before bedtime, since it gives the salts time to clog sweat pores before sweat or water can interfere. “The plugs last for a couple of days,” so there’s no need to worry about rinsing the product off during a morning shower, he noted.

Additional therapeutic options include agents like oral glycopyrrolate, starting at a low dose (1 mg twice per day), increasing by 1 mg/day weekly until efficacy is achieved or limited by adverse events. There is also a glycopyrrolate oral solution 1mg/5ml (Cuvposa) that can be used in children.

A topical version of the anticholinergic glycopyrronium tosylate, applied using an infused cloth, was approved for treating axillary hyperhidrosis in June2018 and offers the potential for an enhanced local anticholinergic effect. Dr. Pariser, one of the authors, discussed the recently published results of two pivotal studies that found good improvement in a specially-designed quality of life endpoint (J Am Acad Derm. 2019; Jan;80[1]:128-138.e2).

David Pariser, MD, dermatologist, Norfolk, Va.
Dr, David Pariser

Efficacy in a subanalysis of 44 pediatric subjects (ages 9-16 years) was similar as those reported in adults, and the rate of those reporting dry mouth (24% in both age groups) was similar. Of concern was a 16% rate of mydriasis in the pediatric group, compared with 6% in the older group. One patient even wound up in the emergency room for a stroke work-up as a result, said Dr. Pariser, who is confident that the problem was caused by inadvertent exposure to the eye during application. He advises patients to avoid contact with the eyes.

Other approaches to treatment of hyperhidrosis include oxybutynin, iontophoresis, an microwave thermolysis (which may also reduce odor and hair). Endoscopic thoracic sympathectomy is effective but is the most invasive option; botulinum toxin is a minimally invasive alternative to surgery.

For those who sweat when they experience anxiety, propranolol 5-10 mg taken about 1 hour before an event that could cause hyperhydrosis can be effective, said Dr. Pariser, who recommends a test dose. “I don’t normally tell patients to try something at home. But they should try this at home” before using it prior to an important event, he added.

Dr. Pariser is a consultant and/or investigator for Dermira, Brickell Biotech, TheraVida, Atacama, TDI Surgitech, Dermavant, and Revance Therapeutics. He has not done commercial speaking, has not been on speaker’s bureaus, and has no stock or options in any company.

This publication and Global Academy for Medical Education are owned by the same parent company.

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After years of relying on oral anticholinergics for treating hyperhidrosis, more options have recently become available, David Pariser, MD, said at the annual Coastal Dermatology Symposium.

sweaty many
Koldunov/Thinkstock

Hyperhidrosis is among the dermatological conditions that have the greatest impact on quality of life, and it can be particularly concerning to teens, said Dr. Pariser, professor of dermatology at Eastern Virginia Medical School, Norfolk. He referred to some new developments for an old, often misunderstood, standby: antiperspirants. “I am amazed that many people do not know the difference between an antiperspirant and a deodorant,” he said, pointing out that antiperspirants contain active ingredients – aluminum and zirconium salts – that block sweat glands, while deodorants contain a masking fragrance.

There are new-generation topical antiperspirants available over the counter, with descriptions that include “clinical strength” or “clinical protection” on the labels; they come in a box and cost about twice as much as standard products. “But they are better, and they work just as well as some of the commercial preparations,” Dr. Pariser said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

One issue he highlighted was that antiperspirants are often misapplied. They shouldn’t be applied on wet skin because they react with water to create hydrochloric acid, which can irritate the skin, he said. The best time to apply an antiperspirant is right before bedtime, since it gives the salts time to clog sweat pores before sweat or water can interfere. “The plugs last for a couple of days,” so there’s no need to worry about rinsing the product off during a morning shower, he noted.

Additional therapeutic options include agents like oral glycopyrrolate, starting at a low dose (1 mg twice per day), increasing by 1 mg/day weekly until efficacy is achieved or limited by adverse events. There is also a glycopyrrolate oral solution 1mg/5ml (Cuvposa) that can be used in children.

A topical version of the anticholinergic glycopyrronium tosylate, applied using an infused cloth, was approved for treating axillary hyperhidrosis in June2018 and offers the potential for an enhanced local anticholinergic effect. Dr. Pariser, one of the authors, discussed the recently published results of two pivotal studies that found good improvement in a specially-designed quality of life endpoint (J Am Acad Derm. 2019; Jan;80[1]:128-138.e2).

David Pariser, MD, dermatologist, Norfolk, Va.
Dr, David Pariser

Efficacy in a subanalysis of 44 pediatric subjects (ages 9-16 years) was similar as those reported in adults, and the rate of those reporting dry mouth (24% in both age groups) was similar. Of concern was a 16% rate of mydriasis in the pediatric group, compared with 6% in the older group. One patient even wound up in the emergency room for a stroke work-up as a result, said Dr. Pariser, who is confident that the problem was caused by inadvertent exposure to the eye during application. He advises patients to avoid contact with the eyes.

Other approaches to treatment of hyperhidrosis include oxybutynin, iontophoresis, an microwave thermolysis (which may also reduce odor and hair). Endoscopic thoracic sympathectomy is effective but is the most invasive option; botulinum toxin is a minimally invasive alternative to surgery.

For those who sweat when they experience anxiety, propranolol 5-10 mg taken about 1 hour before an event that could cause hyperhydrosis can be effective, said Dr. Pariser, who recommends a test dose. “I don’t normally tell patients to try something at home. But they should try this at home” before using it prior to an important event, he added.

Dr. Pariser is a consultant and/or investigator for Dermira, Brickell Biotech, TheraVida, Atacama, TDI Surgitech, Dermavant, and Revance Therapeutics. He has not done commercial speaking, has not been on speaker’s bureaus, and has no stock or options in any company.

This publication and Global Academy for Medical Education are owned by the same parent company.

 

After years of relying on oral anticholinergics for treating hyperhidrosis, more options have recently become available, David Pariser, MD, said at the annual Coastal Dermatology Symposium.

sweaty many
Koldunov/Thinkstock

Hyperhidrosis is among the dermatological conditions that have the greatest impact on quality of life, and it can be particularly concerning to teens, said Dr. Pariser, professor of dermatology at Eastern Virginia Medical School, Norfolk. He referred to some new developments for an old, often misunderstood, standby: antiperspirants. “I am amazed that many people do not know the difference between an antiperspirant and a deodorant,” he said, pointing out that antiperspirants contain active ingredients – aluminum and zirconium salts – that block sweat glands, while deodorants contain a masking fragrance.

There are new-generation topical antiperspirants available over the counter, with descriptions that include “clinical strength” or “clinical protection” on the labels; they come in a box and cost about twice as much as standard products. “But they are better, and they work just as well as some of the commercial preparations,” Dr. Pariser said at the meeting, jointly presented by the University of Louisville and Global Academy for Medical Education.

One issue he highlighted was that antiperspirants are often misapplied. They shouldn’t be applied on wet skin because they react with water to create hydrochloric acid, which can irritate the skin, he said. The best time to apply an antiperspirant is right before bedtime, since it gives the salts time to clog sweat pores before sweat or water can interfere. “The plugs last for a couple of days,” so there’s no need to worry about rinsing the product off during a morning shower, he noted.

Additional therapeutic options include agents like oral glycopyrrolate, starting at a low dose (1 mg twice per day), increasing by 1 mg/day weekly until efficacy is achieved or limited by adverse events. There is also a glycopyrrolate oral solution 1mg/5ml (Cuvposa) that can be used in children.

A topical version of the anticholinergic glycopyrronium tosylate, applied using an infused cloth, was approved for treating axillary hyperhidrosis in June2018 and offers the potential for an enhanced local anticholinergic effect. Dr. Pariser, one of the authors, discussed the recently published results of two pivotal studies that found good improvement in a specially-designed quality of life endpoint (J Am Acad Derm. 2019; Jan;80[1]:128-138.e2).

David Pariser, MD, dermatologist, Norfolk, Va.
Dr, David Pariser

Efficacy in a subanalysis of 44 pediatric subjects (ages 9-16 years) was similar as those reported in adults, and the rate of those reporting dry mouth (24% in both age groups) was similar. Of concern was a 16% rate of mydriasis in the pediatric group, compared with 6% in the older group. One patient even wound up in the emergency room for a stroke work-up as a result, said Dr. Pariser, who is confident that the problem was caused by inadvertent exposure to the eye during application. He advises patients to avoid contact with the eyes.

Other approaches to treatment of hyperhidrosis include oxybutynin, iontophoresis, an microwave thermolysis (which may also reduce odor and hair). Endoscopic thoracic sympathectomy is effective but is the most invasive option; botulinum toxin is a minimally invasive alternative to surgery.

For those who sweat when they experience anxiety, propranolol 5-10 mg taken about 1 hour before an event that could cause hyperhydrosis can be effective, said Dr. Pariser, who recommends a test dose. “I don’t normally tell patients to try something at home. But they should try this at home” before using it prior to an important event, he added.

Dr. Pariser is a consultant and/or investigator for Dermira, Brickell Biotech, TheraVida, Atacama, TDI Surgitech, Dermavant, and Revance Therapeutics. He has not done commercial speaking, has not been on speaker’s bureaus, and has no stock or options in any company.

This publication and Global Academy for Medical Education are owned by the same parent company.

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Psoriasis comorbidities: Biologics may help

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– Psoriasis is a complex condition, made more difficult by comorbidities. Psoriatic arthritis is the most common and is frequently discussed. But mental health issues and cardiovascular events also co-occur and can present major complications, according to Jashin Wu, MD, founder and CEO of the Dermatology Research and Education Foundation, who discussed psoriasis comorbidities at the annual Coastal Dermatology Symposium.

Mental health–related issues associated with psoriasis (Psychiatr Danub. 2017 Dec;29[4]:401-6) include sleep disorders (prevalence, 62%), sexual dysfunction (46%), personality disorder (35%), anxiety (30%), adjustment (29%), and depressive disorders (28%); 25% of patients have an accompanying substance abuse disorder. Suicidal ideation and suicidal depression are particularly concerning, and a meta-analysis (J Am Acad Dermatol. 2017 Sep;77[3]:425-40.e2) showed a 44% increased risk of suicidal ideation associated with psoriasis.

Such problems aren’t surprising, since psoriasis is a lifelong disease, and many patients’ symptoms aren’t adequately controlled. “A lot of these patients get topical therapies, which is probably not enough, especially if they have severe disease,” said Dr. Wu in an interview.

Dermatologists can sometimes be nervous about biologics because of concerns over increased risk of infection or cancer. That can lead to conservative, topical treatment. Dr. Wu feels that rare side effects shouldn’t deter from aggressive treatment, when appropriate. “It’s better to treat the patient to make sure they’re clear, which may improve their comorbidities as well. In general, if you’re worried, you can send them to other specialists to do monitoring,” Dr. Wu said in the interview.

Different treatment methods may influence mental health outcomes, according to the PSOLAR study (J Am Acad Dermatol. 2018 Jan;78[1]:70-80). It examined the issue prospectively with over 12,000 psoriasis patients, and found a depression incidence of 3.01 per 100-patient years when treated with biologics, compared with 5.85 for phototherapy and 5.70 for conventional therapy. Put another way, exposure to biologics was associated with a reduced risk of depression, compared with conventional therapies (hazard ratio, 0.76; P = .0367). “It seems to show that biologics have a better improvement of depression symptoms, compared to phototherapy or oral therapy,” said Dr. Wu.

Those results suggest that dermatologists should be on the lookout for mental health issues, though that is a challenge for someone not trained in the field. Dr. Wu takes a simple approach. “I like just asking open-ended questions, like how they’re doing, and if you get a sense that maybe they’re depressed, ask more specific questions about their mood, how they’re feeling, how things are at work, how things are at home.” When things aren’t right, “the key is to try to get them on something that’s going to clear them very quickly. If it’s severe disease, use a biologic that’s going to clear it very quickly,” he added.

Unfortunately, just being clear isn’t a complete guarantee of improved mental health. Dr. Wu had two patients who committed suicide despite significant skin improvement. Patients may have between-visit flare-ups, or regular injections may be a reminder that psoriasis is an ongoing health struggle. Or patients may have other psychological concerns. That underlines the importance of awareness of mental health issues. “You don’t need to refer everyone [to a mental health specialist], but you should have a rolodex where you have someone you can send a patient to if you’re worried,” said Dr. Wu.

As with mental health issues, psoriasis patients are also at elevated risk for a wide range of cardiovascular comorbidities, such as diabetes, dyslipidemia, and high blood pressure. “As a dermatologist, you may not want to screen for these things, but you can send them to their primary care doctor or a cardiologist,” Dr. Wu said in the interview.

Also like mental health issues, there is evidence that treatment with biologics may have an outsized protective effect. One study (J Eur Acad Dermatol Venereol. 2018 Mar 24. doi: 10.1111/jdv.14951) led by Dr. Wu showed that treatment with a tumor necrosis factor (TNF)–alpha inhibitor led to a significant reduction in major adverse cardiac events, compared with topical therapy (propensity score–adjusted HR, 0.80; 95% CI, 0.66-0.98), while phototherapy or oral therapy trended towards an increased risk (adjusted HR, 1.13; 95% CI, 1.00-1.28). Another analysis (J Am Acad Dermatol. 2017 Jan;76[1]:81-90) from Dr. Wu’s group that included about 380,000 psoriasis patients found that treatment with TNF-alpha inhibitors was associated with fewer major cardiovascular events, compared with treatment with methotrexate (adjusted HR, 0.55; P less than .0001). Individual analyses showed associated reductions in stroke or transient ischemic attack (aHR, 0.55; P less than .0001), unstable angina (aHR, 0.58; P = .0024), and MI (aHR, 0.49; P = .0002). TNF-alpha inhibitors also seem to beat out phototherapy with respect to major cardiovascular events (aHR, 0.77; P = .046. J Am Acad Dermatol. 2018 Jul;79[1]:60-6).

More direct evidence of the benefit of biologics comes from the CANTOS trial (N Engl J Med. 2017 Sep 21;377[12]:1119-31), which randomized more than 10,000 patients with cryopyrin-associated periodic syndromes to receive the IL-1 beta-blocker canakinumab or placebo. Canakinumab was associated with significant reductions in nonfatal MI, nonfatal stroke, or cardiovascular death at 150 mg (HR, 0.85; P = .021) and 300 mg (HR, 0.86; P = .031), but not at 50 mg.

The bottom line, said Dr. Wu, is that psoriasis and psoriatic arthritis should be treated early with TNF-alpha inhibitors or IL-17 inhibitors in an effort to improve mental health, cardiovascular, and psoriatic arthritis outcomes.

Dr. Wu has been a consultant or speaker for, or done research on behalf of, AbbVie, Almirall, Amgen, Bristol-Myers Squibb, Celgene, Dermira, Dr. Reddy’s Laboratories, Eli Lilly, Janssen, LEO Pharma, Novartis, Regeneron, Sun Pharmaceutical, UCB, and Valeant Pharmaceuticals North America.

The meeting is jointly presented by the University of Louisville and Global Academy for Medical Education. This publication and Global Academy for Medical Education are owned by the same parent company.

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– Psoriasis is a complex condition, made more difficult by comorbidities. Psoriatic arthritis is the most common and is frequently discussed. But mental health issues and cardiovascular events also co-occur and can present major complications, according to Jashin Wu, MD, founder and CEO of the Dermatology Research and Education Foundation, who discussed psoriasis comorbidities at the annual Coastal Dermatology Symposium.

Mental health–related issues associated with psoriasis (Psychiatr Danub. 2017 Dec;29[4]:401-6) include sleep disorders (prevalence, 62%), sexual dysfunction (46%), personality disorder (35%), anxiety (30%), adjustment (29%), and depressive disorders (28%); 25% of patients have an accompanying substance abuse disorder. Suicidal ideation and suicidal depression are particularly concerning, and a meta-analysis (J Am Acad Dermatol. 2017 Sep;77[3]:425-40.e2) showed a 44% increased risk of suicidal ideation associated with psoriasis.

Such problems aren’t surprising, since psoriasis is a lifelong disease, and many patients’ symptoms aren’t adequately controlled. “A lot of these patients get topical therapies, which is probably not enough, especially if they have severe disease,” said Dr. Wu in an interview.

Dermatologists can sometimes be nervous about biologics because of concerns over increased risk of infection or cancer. That can lead to conservative, topical treatment. Dr. Wu feels that rare side effects shouldn’t deter from aggressive treatment, when appropriate. “It’s better to treat the patient to make sure they’re clear, which may improve their comorbidities as well. In general, if you’re worried, you can send them to other specialists to do monitoring,” Dr. Wu said in the interview.

Different treatment methods may influence mental health outcomes, according to the PSOLAR study (J Am Acad Dermatol. 2018 Jan;78[1]:70-80). It examined the issue prospectively with over 12,000 psoriasis patients, and found a depression incidence of 3.01 per 100-patient years when treated with biologics, compared with 5.85 for phototherapy and 5.70 for conventional therapy. Put another way, exposure to biologics was associated with a reduced risk of depression, compared with conventional therapies (hazard ratio, 0.76; P = .0367). “It seems to show that biologics have a better improvement of depression symptoms, compared to phototherapy or oral therapy,” said Dr. Wu.

Those results suggest that dermatologists should be on the lookout for mental health issues, though that is a challenge for someone not trained in the field. Dr. Wu takes a simple approach. “I like just asking open-ended questions, like how they’re doing, and if you get a sense that maybe they’re depressed, ask more specific questions about their mood, how they’re feeling, how things are at work, how things are at home.” When things aren’t right, “the key is to try to get them on something that’s going to clear them very quickly. If it’s severe disease, use a biologic that’s going to clear it very quickly,” he added.

Unfortunately, just being clear isn’t a complete guarantee of improved mental health. Dr. Wu had two patients who committed suicide despite significant skin improvement. Patients may have between-visit flare-ups, or regular injections may be a reminder that psoriasis is an ongoing health struggle. Or patients may have other psychological concerns. That underlines the importance of awareness of mental health issues. “You don’t need to refer everyone [to a mental health specialist], but you should have a rolodex where you have someone you can send a patient to if you’re worried,” said Dr. Wu.

As with mental health issues, psoriasis patients are also at elevated risk for a wide range of cardiovascular comorbidities, such as diabetes, dyslipidemia, and high blood pressure. “As a dermatologist, you may not want to screen for these things, but you can send them to their primary care doctor or a cardiologist,” Dr. Wu said in the interview.

Also like mental health issues, there is evidence that treatment with biologics may have an outsized protective effect. One study (J Eur Acad Dermatol Venereol. 2018 Mar 24. doi: 10.1111/jdv.14951) led by Dr. Wu showed that treatment with a tumor necrosis factor (TNF)–alpha inhibitor led to a significant reduction in major adverse cardiac events, compared with topical therapy (propensity score–adjusted HR, 0.80; 95% CI, 0.66-0.98), while phototherapy or oral therapy trended towards an increased risk (adjusted HR, 1.13; 95% CI, 1.00-1.28). Another analysis (J Am Acad Dermatol. 2017 Jan;76[1]:81-90) from Dr. Wu’s group that included about 380,000 psoriasis patients found that treatment with TNF-alpha inhibitors was associated with fewer major cardiovascular events, compared with treatment with methotrexate (adjusted HR, 0.55; P less than .0001). Individual analyses showed associated reductions in stroke or transient ischemic attack (aHR, 0.55; P less than .0001), unstable angina (aHR, 0.58; P = .0024), and MI (aHR, 0.49; P = .0002). TNF-alpha inhibitors also seem to beat out phototherapy with respect to major cardiovascular events (aHR, 0.77; P = .046. J Am Acad Dermatol. 2018 Jul;79[1]:60-6).

More direct evidence of the benefit of biologics comes from the CANTOS trial (N Engl J Med. 2017 Sep 21;377[12]:1119-31), which randomized more than 10,000 patients with cryopyrin-associated periodic syndromes to receive the IL-1 beta-blocker canakinumab or placebo. Canakinumab was associated with significant reductions in nonfatal MI, nonfatal stroke, or cardiovascular death at 150 mg (HR, 0.85; P = .021) and 300 mg (HR, 0.86; P = .031), but not at 50 mg.

The bottom line, said Dr. Wu, is that psoriasis and psoriatic arthritis should be treated early with TNF-alpha inhibitors or IL-17 inhibitors in an effort to improve mental health, cardiovascular, and psoriatic arthritis outcomes.

Dr. Wu has been a consultant or speaker for, or done research on behalf of, AbbVie, Almirall, Amgen, Bristol-Myers Squibb, Celgene, Dermira, Dr. Reddy’s Laboratories, Eli Lilly, Janssen, LEO Pharma, Novartis, Regeneron, Sun Pharmaceutical, UCB, and Valeant Pharmaceuticals North America.

The meeting is jointly presented by the University of Louisville and Global Academy for Medical Education. This publication and Global Academy for Medical Education are owned by the same parent company.

 

– Psoriasis is a complex condition, made more difficult by comorbidities. Psoriatic arthritis is the most common and is frequently discussed. But mental health issues and cardiovascular events also co-occur and can present major complications, according to Jashin Wu, MD, founder and CEO of the Dermatology Research and Education Foundation, who discussed psoriasis comorbidities at the annual Coastal Dermatology Symposium.

Mental health–related issues associated with psoriasis (Psychiatr Danub. 2017 Dec;29[4]:401-6) include sleep disorders (prevalence, 62%), sexual dysfunction (46%), personality disorder (35%), anxiety (30%), adjustment (29%), and depressive disorders (28%); 25% of patients have an accompanying substance abuse disorder. Suicidal ideation and suicidal depression are particularly concerning, and a meta-analysis (J Am Acad Dermatol. 2017 Sep;77[3]:425-40.e2) showed a 44% increased risk of suicidal ideation associated with psoriasis.

Such problems aren’t surprising, since psoriasis is a lifelong disease, and many patients’ symptoms aren’t adequately controlled. “A lot of these patients get topical therapies, which is probably not enough, especially if they have severe disease,” said Dr. Wu in an interview.

Dermatologists can sometimes be nervous about biologics because of concerns over increased risk of infection or cancer. That can lead to conservative, topical treatment. Dr. Wu feels that rare side effects shouldn’t deter from aggressive treatment, when appropriate. “It’s better to treat the patient to make sure they’re clear, which may improve their comorbidities as well. In general, if you’re worried, you can send them to other specialists to do monitoring,” Dr. Wu said in the interview.

Different treatment methods may influence mental health outcomes, according to the PSOLAR study (J Am Acad Dermatol. 2018 Jan;78[1]:70-80). It examined the issue prospectively with over 12,000 psoriasis patients, and found a depression incidence of 3.01 per 100-patient years when treated with biologics, compared with 5.85 for phototherapy and 5.70 for conventional therapy. Put another way, exposure to biologics was associated with a reduced risk of depression, compared with conventional therapies (hazard ratio, 0.76; P = .0367). “It seems to show that biologics have a better improvement of depression symptoms, compared to phototherapy or oral therapy,” said Dr. Wu.

Those results suggest that dermatologists should be on the lookout for mental health issues, though that is a challenge for someone not trained in the field. Dr. Wu takes a simple approach. “I like just asking open-ended questions, like how they’re doing, and if you get a sense that maybe they’re depressed, ask more specific questions about their mood, how they’re feeling, how things are at work, how things are at home.” When things aren’t right, “the key is to try to get them on something that’s going to clear them very quickly. If it’s severe disease, use a biologic that’s going to clear it very quickly,” he added.

Unfortunately, just being clear isn’t a complete guarantee of improved mental health. Dr. Wu had two patients who committed suicide despite significant skin improvement. Patients may have between-visit flare-ups, or regular injections may be a reminder that psoriasis is an ongoing health struggle. Or patients may have other psychological concerns. That underlines the importance of awareness of mental health issues. “You don’t need to refer everyone [to a mental health specialist], but you should have a rolodex where you have someone you can send a patient to if you’re worried,” said Dr. Wu.

As with mental health issues, psoriasis patients are also at elevated risk for a wide range of cardiovascular comorbidities, such as diabetes, dyslipidemia, and high blood pressure. “As a dermatologist, you may not want to screen for these things, but you can send them to their primary care doctor or a cardiologist,” Dr. Wu said in the interview.

Also like mental health issues, there is evidence that treatment with biologics may have an outsized protective effect. One study (J Eur Acad Dermatol Venereol. 2018 Mar 24. doi: 10.1111/jdv.14951) led by Dr. Wu showed that treatment with a tumor necrosis factor (TNF)–alpha inhibitor led to a significant reduction in major adverse cardiac events, compared with topical therapy (propensity score–adjusted HR, 0.80; 95% CI, 0.66-0.98), while phototherapy or oral therapy trended towards an increased risk (adjusted HR, 1.13; 95% CI, 1.00-1.28). Another analysis (J Am Acad Dermatol. 2017 Jan;76[1]:81-90) from Dr. Wu’s group that included about 380,000 psoriasis patients found that treatment with TNF-alpha inhibitors was associated with fewer major cardiovascular events, compared with treatment with methotrexate (adjusted HR, 0.55; P less than .0001). Individual analyses showed associated reductions in stroke or transient ischemic attack (aHR, 0.55; P less than .0001), unstable angina (aHR, 0.58; P = .0024), and MI (aHR, 0.49; P = .0002). TNF-alpha inhibitors also seem to beat out phototherapy with respect to major cardiovascular events (aHR, 0.77; P = .046. J Am Acad Dermatol. 2018 Jul;79[1]:60-6).

More direct evidence of the benefit of biologics comes from the CANTOS trial (N Engl J Med. 2017 Sep 21;377[12]:1119-31), which randomized more than 10,000 patients with cryopyrin-associated periodic syndromes to receive the IL-1 beta-blocker canakinumab or placebo. Canakinumab was associated with significant reductions in nonfatal MI, nonfatal stroke, or cardiovascular death at 150 mg (HR, 0.85; P = .021) and 300 mg (HR, 0.86; P = .031), but not at 50 mg.

The bottom line, said Dr. Wu, is that psoriasis and psoriatic arthritis should be treated early with TNF-alpha inhibitors or IL-17 inhibitors in an effort to improve mental health, cardiovascular, and psoriatic arthritis outcomes.

Dr. Wu has been a consultant or speaker for, or done research on behalf of, AbbVie, Almirall, Amgen, Bristol-Myers Squibb, Celgene, Dermira, Dr. Reddy’s Laboratories, Eli Lilly, Janssen, LEO Pharma, Novartis, Regeneron, Sun Pharmaceutical, UCB, and Valeant Pharmaceuticals North America.

The meeting is jointly presented by the University of Louisville and Global Academy for Medical Education. This publication and Global Academy for Medical Education are owned by the same parent company.

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Guide to the guidelines: Biologics for psoriasis

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Tue, 02/07/2023 - 16:51

 

– The availability of biologics for treating psoriasis and psoriatic arthritis has exploded in recent years, with 11 biologics now approved by the Food and Drug Administration. Targets include four separate mechanisms: inhibition of tumor necrosis factor (TNF), interleukin (IL) 23, IL-12/23, and IL-17. The surfeit of treatment options can be a little overwhelming.

Dr. April Armstrong, MD, MPH Professor of dermatology; director, psoriasis program, department of dermatology, University of Southern California, Los Angeles
Dr. April Armstrong

“It can be confusing. We have a lot of choices, but the good news is that most of our choices are excellent, and they treat both psoriasis and psoriatic arthritis. That’s very important because, when we think of our psoriasis patients, we need to think not only about their skin but also their joint involvement. Assessment of psoriatic arthritis will drive some of our therapeutic [decisions],” April Armstrong, MD, professor of dermatology at the University of Southern California, Los Angeles, said at the annual Coastal Dermatology Symposium.

In April, the American Academy of Dermatology came to the rescue with comprehensive guidelines. Aside from general advice, the guidelines “provide tips for monitoring as well as dose escalation, which will be very helpful in daily practice,” Dr. Armstrong said in an interview.

The best studied of the biologics with respect to psoriasis and psoriatic arthritis are the IL-17 inhibitors and TNF inhibitors, she said. While TNF inhibitors have traditionally been the treatment of choice for both conditions, “I think these days, people realize that IL-17 inhibitors can be just as good.”

A head-to-head study of the IL-17 inhibitor ixekizumab and the TNF inhibitor adalimumab, presented at the EULAR Congress, looked at a combined outcome of skin and joints and found ixekizumab to be superior, though the study design’s inclusion of a skin outcome may have favored ixekizumab (Ann Rheum Dis. 2019 Jun. doi: 10.1136/annrheumdis-2019-eular.8709).

A few other head-to-head studies have been performed, but properly ranking all 11 biologics would require dozens of clinical trials. At the American Academy of Dermatology meeting last March, Dr. Armstrong presented the results of a network meta-analysis of anti-TNF agents, anti-interleukin agents, anti–phosphodiesterase 4 agents, and fumaric acid esters (J Am Acad Dermatol. doi: 10.1016/j.jaad.2019.06.488). That study, funded by AbbVie, compared the individual agents to a collective placebo group and concluded that anti-interleukin agents generate the highest level of PASI 90/100 response rate. Risankizumab, ixekizumab, brodalumab, and guselkumab, all IL inhibitors, achieved the best marks over the primary response period.


The AAD guidelines include recommendations for tests to be done upon initiation of a biologic, including a tuberculosis test, complete blood count, comprehensive metabolic panel, and tests for hepatitis B and C. TB testing should be performed annually during treatment.

The guidelines also include recommendations for dose escalation, which can provide leverage for getting coverage approved. “One can use those guidelines to show payers how dose escalation can be done, so that [physicians] can potentially get more access to medications for their patients,” Dr. Armstrong said at the meeting jointly presented by the University of Louisville and Global Academy for Medical Education.

The guideline also ranks the existing evidence supporting individual biologics for the treatment of psoriasis subtypes. For example, for the treatment of moderate to severe scalp psoriasis, etanercept and guselkumab have consistent and good-quality patient-oriented evidence supporting them; infliximab, adalimumab, secukinumab, and ixekizumab are recommended based on inconsistent or limited quality patient-oriented evidence; and ustekinumab is supported only by consensus opinion, case studies, or disease-oriented evidence. The guidelines provide similar categorization of biologics for the treatment of moderate to severe plaque type palmoplantar psoriasis, moderate to severe psoriasis affecting the nails, adults with pustular or erythrodermic psoriasis, and adults with psoriatic arthritis.

Dr. Armstrong is a research investigator and/or advisor to AbbVie, Janssen, Lily, LEO Pharma, Novartis, UCB, Ortho Dermatologics, Dermera, Regeneron, BMS, Dermavant, and KHK. This publication and Global Academy for Medical Education are owned by the same parent company.

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– The availability of biologics for treating psoriasis and psoriatic arthritis has exploded in recent years, with 11 biologics now approved by the Food and Drug Administration. Targets include four separate mechanisms: inhibition of tumor necrosis factor (TNF), interleukin (IL) 23, IL-12/23, and IL-17. The surfeit of treatment options can be a little overwhelming.

Dr. April Armstrong, MD, MPH Professor of dermatology; director, psoriasis program, department of dermatology, University of Southern California, Los Angeles
Dr. April Armstrong

“It can be confusing. We have a lot of choices, but the good news is that most of our choices are excellent, and they treat both psoriasis and psoriatic arthritis. That’s very important because, when we think of our psoriasis patients, we need to think not only about their skin but also their joint involvement. Assessment of psoriatic arthritis will drive some of our therapeutic [decisions],” April Armstrong, MD, professor of dermatology at the University of Southern California, Los Angeles, said at the annual Coastal Dermatology Symposium.

In April, the American Academy of Dermatology came to the rescue with comprehensive guidelines. Aside from general advice, the guidelines “provide tips for monitoring as well as dose escalation, which will be very helpful in daily practice,” Dr. Armstrong said in an interview.

The best studied of the biologics with respect to psoriasis and psoriatic arthritis are the IL-17 inhibitors and TNF inhibitors, she said. While TNF inhibitors have traditionally been the treatment of choice for both conditions, “I think these days, people realize that IL-17 inhibitors can be just as good.”

A head-to-head study of the IL-17 inhibitor ixekizumab and the TNF inhibitor adalimumab, presented at the EULAR Congress, looked at a combined outcome of skin and joints and found ixekizumab to be superior, though the study design’s inclusion of a skin outcome may have favored ixekizumab (Ann Rheum Dis. 2019 Jun. doi: 10.1136/annrheumdis-2019-eular.8709).

A few other head-to-head studies have been performed, but properly ranking all 11 biologics would require dozens of clinical trials. At the American Academy of Dermatology meeting last March, Dr. Armstrong presented the results of a network meta-analysis of anti-TNF agents, anti-interleukin agents, anti–phosphodiesterase 4 agents, and fumaric acid esters (J Am Acad Dermatol. doi: 10.1016/j.jaad.2019.06.488). That study, funded by AbbVie, compared the individual agents to a collective placebo group and concluded that anti-interleukin agents generate the highest level of PASI 90/100 response rate. Risankizumab, ixekizumab, brodalumab, and guselkumab, all IL inhibitors, achieved the best marks over the primary response period.


The AAD guidelines include recommendations for tests to be done upon initiation of a biologic, including a tuberculosis test, complete blood count, comprehensive metabolic panel, and tests for hepatitis B and C. TB testing should be performed annually during treatment.

The guidelines also include recommendations for dose escalation, which can provide leverage for getting coverage approved. “One can use those guidelines to show payers how dose escalation can be done, so that [physicians] can potentially get more access to medications for their patients,” Dr. Armstrong said at the meeting jointly presented by the University of Louisville and Global Academy for Medical Education.

The guideline also ranks the existing evidence supporting individual biologics for the treatment of psoriasis subtypes. For example, for the treatment of moderate to severe scalp psoriasis, etanercept and guselkumab have consistent and good-quality patient-oriented evidence supporting them; infliximab, adalimumab, secukinumab, and ixekizumab are recommended based on inconsistent or limited quality patient-oriented evidence; and ustekinumab is supported only by consensus opinion, case studies, or disease-oriented evidence. The guidelines provide similar categorization of biologics for the treatment of moderate to severe plaque type palmoplantar psoriasis, moderate to severe psoriasis affecting the nails, adults with pustular or erythrodermic psoriasis, and adults with psoriatic arthritis.

Dr. Armstrong is a research investigator and/or advisor to AbbVie, Janssen, Lily, LEO Pharma, Novartis, UCB, Ortho Dermatologics, Dermera, Regeneron, BMS, Dermavant, and KHK. This publication and Global Academy for Medical Education are owned by the same parent company.

 

– The availability of biologics for treating psoriasis and psoriatic arthritis has exploded in recent years, with 11 biologics now approved by the Food and Drug Administration. Targets include four separate mechanisms: inhibition of tumor necrosis factor (TNF), interleukin (IL) 23, IL-12/23, and IL-17. The surfeit of treatment options can be a little overwhelming.

Dr. April Armstrong, MD, MPH Professor of dermatology; director, psoriasis program, department of dermatology, University of Southern California, Los Angeles
Dr. April Armstrong

“It can be confusing. We have a lot of choices, but the good news is that most of our choices are excellent, and they treat both psoriasis and psoriatic arthritis. That’s very important because, when we think of our psoriasis patients, we need to think not only about their skin but also their joint involvement. Assessment of psoriatic arthritis will drive some of our therapeutic [decisions],” April Armstrong, MD, professor of dermatology at the University of Southern California, Los Angeles, said at the annual Coastal Dermatology Symposium.

In April, the American Academy of Dermatology came to the rescue with comprehensive guidelines. Aside from general advice, the guidelines “provide tips for monitoring as well as dose escalation, which will be very helpful in daily practice,” Dr. Armstrong said in an interview.

The best studied of the biologics with respect to psoriasis and psoriatic arthritis are the IL-17 inhibitors and TNF inhibitors, she said. While TNF inhibitors have traditionally been the treatment of choice for both conditions, “I think these days, people realize that IL-17 inhibitors can be just as good.”

A head-to-head study of the IL-17 inhibitor ixekizumab and the TNF inhibitor adalimumab, presented at the EULAR Congress, looked at a combined outcome of skin and joints and found ixekizumab to be superior, though the study design’s inclusion of a skin outcome may have favored ixekizumab (Ann Rheum Dis. 2019 Jun. doi: 10.1136/annrheumdis-2019-eular.8709).

A few other head-to-head studies have been performed, but properly ranking all 11 biologics would require dozens of clinical trials. At the American Academy of Dermatology meeting last March, Dr. Armstrong presented the results of a network meta-analysis of anti-TNF agents, anti-interleukin agents, anti–phosphodiesterase 4 agents, and fumaric acid esters (J Am Acad Dermatol. doi: 10.1016/j.jaad.2019.06.488). That study, funded by AbbVie, compared the individual agents to a collective placebo group and concluded that anti-interleukin agents generate the highest level of PASI 90/100 response rate. Risankizumab, ixekizumab, brodalumab, and guselkumab, all IL inhibitors, achieved the best marks over the primary response period.


The AAD guidelines include recommendations for tests to be done upon initiation of a biologic, including a tuberculosis test, complete blood count, comprehensive metabolic panel, and tests for hepatitis B and C. TB testing should be performed annually during treatment.

The guidelines also include recommendations for dose escalation, which can provide leverage for getting coverage approved. “One can use those guidelines to show payers how dose escalation can be done, so that [physicians] can potentially get more access to medications for their patients,” Dr. Armstrong said at the meeting jointly presented by the University of Louisville and Global Academy for Medical Education.

The guideline also ranks the existing evidence supporting individual biologics for the treatment of psoriasis subtypes. For example, for the treatment of moderate to severe scalp psoriasis, etanercept and guselkumab have consistent and good-quality patient-oriented evidence supporting them; infliximab, adalimumab, secukinumab, and ixekizumab are recommended based on inconsistent or limited quality patient-oriented evidence; and ustekinumab is supported only by consensus opinion, case studies, or disease-oriented evidence. The guidelines provide similar categorization of biologics for the treatment of moderate to severe plaque type palmoplantar psoriasis, moderate to severe psoriasis affecting the nails, adults with pustular or erythrodermic psoriasis, and adults with psoriatic arthritis.

Dr. Armstrong is a research investigator and/or advisor to AbbVie, Janssen, Lily, LEO Pharma, Novartis, UCB, Ortho Dermatologics, Dermera, Regeneron, BMS, Dermavant, and KHK. This publication and Global Academy for Medical Education are owned by the same parent company.

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Photodermatoses: Differential diagnosis includes sunscreen allergy, connective tissue disease

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Fri, 10/04/2019 - 15:19

 

Photodermatoses are comparatively rare, and dermatologists may sometimes be reluctant to tackle them, according to Vincent DeLeo, MD, of the department of dermatology at the University of Southern California, Los Angeles, who discussed common diagnoses at the annual Coastal Dermatology Symposium.

“They’re not common bread-and-butter dermatitis, like acne rosacea. Many people feel uncomfortable trying to work out the differential diagnosis when they see someone who comes in with what either the patient or the physician thinks is a reaction to the sun,” Dr. DeLeo said in an interview at the meeting.

“Usually, the best clue is the distribution of the rash or lesion,” which often are on the backs of the hands or on the arms from the sleeves down, he added. “When you see that, you should think of a photosensitive eruption,” and consider a differential diagnosis, using “certain tests, asking questions, and looking at the morphology and distribution of the reaction.”

The most common of the photodermatoses is polymorphous light eruption, which typically occurs in people on vacation, often among those who live in temperate climates and react violently to sun overexposure. “You usually have to rule out things like connective tissue disease by getting serology,” Dr. DeLeo noted in the interview.

In general, these patients either present with a reaction or describe a rash that has since cleared up. When a patient is describing a problem that has disappeared, he or she may have a photo of the reaction on their phone, which can be helpful, he said at the meeting jointly presented by the University of Louisville and Global Academy for Medical Education.

Some photodermatoses are characterized by tell-tale rashes indicative of a connective tissue disease like lupus or dermatomyositis, which can be followed up with biopsy and serology to confirm a diagnosis, said Dr. DeLeo, who is also professor emeritus of dermatology at the Icahn School of Medicine at Mount Sinai, New York. Other patterns, such as blisters on the hands, should prompt tests for porphyria cutanea tarda, which requires a 24-hour urine test to confirm.

But reactions in sun-exposed areas can also be caused by drug-induced photosensitivity and drugs such as NSAIDs, antibiotics, and diuretics, among others, Dr. DeLeo said.



Another common reaction can occur with exposure to photosensitizing plant materials, resulting in blisters combined with altered pigmentation. Most frequently, these reactions are caused by exposure to limes, which contain psoralens that absorb light and produce the reaction. “That is a clinical diagnosis and we can recognize that because, like poison ivy, it is usually a streaky kind of reaction in a distinct pattern. You don’t need [additional] tests for that,” he said. This can occur, for example, after making cocktails, he said, describing an example of parents who had been mixing drinks and then picked up their child. Later, they brought the child to the ED with a hand-shaped rash, and treating physicians contacted social services out of fears of child abuse.

In some cases, patients who present with no rash can elicit the problem. Solar urticaria can produce hives on demand – ask a patient to go out in the sun and return after a few minutes, and a rash will generally appear, Dr. DeLeo advised.

Patients might want to take steps to avoid such problems and there are several options available to do so, Dr. DeLeo noted. There is some evidence of efficacy for photoprotection for an extract from a fern plant found in Central and South America, a product called Heliocare, in a study sponsored by the manufacturer, Ferndale Healthcare (J Clin Aesthet Dermatol. 2015 Feb;8[2]:19-23). Patients can also undergo two or three treatments of phototherapy for 3-4 weeks in advance of a trip in order to “harden” the skin and reduce the chances of an overreaction.

Dr. DeLeo presented a simplified guide to use when considering differential diagnoses in patients with photodermatoses.

  • Solar urticaria occurs quickly upon exposure and is short lived.
  • Polymorphous light eruption usually occurs during a vacation and does not affect the face.
  • A sun-related eczematous rash affecting the face, which recurs, is typically photoallergy to sunscreen.
  • A chronic, severe dermatitis seen in a photodistribution pattern could be chronic actinic dermatitis. The patient should undergo phototesting. A biopsy of a severe case may resemble lymphoma.
  • In photosensitive individuals with an uncertain diagnosis, serology testing for connective tissue disease should be performed to rule out lupus or dermatomyositis.
  • When the patient has a rash in only sun-exposed areas, as well as a history of exposure to photosensitizing drugs, the drug should be discontinued to see if the rash disappears.
  • Porphyria cutanea tarda is diagnosed with a 24-hour urine test that reveals at least five times normal uroporphyrin levels, along with hemochromatosis polymorphisms. Levels of uroporphyrin that are elevated but not five times normal are suggestive of pseudoporphyria.
  • Phototoxic contact dermatitis caused by plants often results in unusual distributions.
  • Hispanic individuals with a photodistributed rash, especially in the presence of cheilitis, may have actinic prurigo.

Dr. DeLeo is a consultant for Estee Lauder. The annual Coastal Dermatology Symposium is jointly presented by the University of Louisville and Global Academy for Medical Education. This publication and Global Academy for Medical Education are owned by the same parent company.

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Photodermatoses are comparatively rare, and dermatologists may sometimes be reluctant to tackle them, according to Vincent DeLeo, MD, of the department of dermatology at the University of Southern California, Los Angeles, who discussed common diagnoses at the annual Coastal Dermatology Symposium.

“They’re not common bread-and-butter dermatitis, like acne rosacea. Many people feel uncomfortable trying to work out the differential diagnosis when they see someone who comes in with what either the patient or the physician thinks is a reaction to the sun,” Dr. DeLeo said in an interview at the meeting.

“Usually, the best clue is the distribution of the rash or lesion,” which often are on the backs of the hands or on the arms from the sleeves down, he added. “When you see that, you should think of a photosensitive eruption,” and consider a differential diagnosis, using “certain tests, asking questions, and looking at the morphology and distribution of the reaction.”

The most common of the photodermatoses is polymorphous light eruption, which typically occurs in people on vacation, often among those who live in temperate climates and react violently to sun overexposure. “You usually have to rule out things like connective tissue disease by getting serology,” Dr. DeLeo noted in the interview.

In general, these patients either present with a reaction or describe a rash that has since cleared up. When a patient is describing a problem that has disappeared, he or she may have a photo of the reaction on their phone, which can be helpful, he said at the meeting jointly presented by the University of Louisville and Global Academy for Medical Education.

Some photodermatoses are characterized by tell-tale rashes indicative of a connective tissue disease like lupus or dermatomyositis, which can be followed up with biopsy and serology to confirm a diagnosis, said Dr. DeLeo, who is also professor emeritus of dermatology at the Icahn School of Medicine at Mount Sinai, New York. Other patterns, such as blisters on the hands, should prompt tests for porphyria cutanea tarda, which requires a 24-hour urine test to confirm.

But reactions in sun-exposed areas can also be caused by drug-induced photosensitivity and drugs such as NSAIDs, antibiotics, and diuretics, among others, Dr. DeLeo said.



Another common reaction can occur with exposure to photosensitizing plant materials, resulting in blisters combined with altered pigmentation. Most frequently, these reactions are caused by exposure to limes, which contain psoralens that absorb light and produce the reaction. “That is a clinical diagnosis and we can recognize that because, like poison ivy, it is usually a streaky kind of reaction in a distinct pattern. You don’t need [additional] tests for that,” he said. This can occur, for example, after making cocktails, he said, describing an example of parents who had been mixing drinks and then picked up their child. Later, they brought the child to the ED with a hand-shaped rash, and treating physicians contacted social services out of fears of child abuse.

In some cases, patients who present with no rash can elicit the problem. Solar urticaria can produce hives on demand – ask a patient to go out in the sun and return after a few minutes, and a rash will generally appear, Dr. DeLeo advised.

Patients might want to take steps to avoid such problems and there are several options available to do so, Dr. DeLeo noted. There is some evidence of efficacy for photoprotection for an extract from a fern plant found in Central and South America, a product called Heliocare, in a study sponsored by the manufacturer, Ferndale Healthcare (J Clin Aesthet Dermatol. 2015 Feb;8[2]:19-23). Patients can also undergo two or three treatments of phototherapy for 3-4 weeks in advance of a trip in order to “harden” the skin and reduce the chances of an overreaction.

Dr. DeLeo presented a simplified guide to use when considering differential diagnoses in patients with photodermatoses.

  • Solar urticaria occurs quickly upon exposure and is short lived.
  • Polymorphous light eruption usually occurs during a vacation and does not affect the face.
  • A sun-related eczematous rash affecting the face, which recurs, is typically photoallergy to sunscreen.
  • A chronic, severe dermatitis seen in a photodistribution pattern could be chronic actinic dermatitis. The patient should undergo phototesting. A biopsy of a severe case may resemble lymphoma.
  • In photosensitive individuals with an uncertain diagnosis, serology testing for connective tissue disease should be performed to rule out lupus or dermatomyositis.
  • When the patient has a rash in only sun-exposed areas, as well as a history of exposure to photosensitizing drugs, the drug should be discontinued to see if the rash disappears.
  • Porphyria cutanea tarda is diagnosed with a 24-hour urine test that reveals at least five times normal uroporphyrin levels, along with hemochromatosis polymorphisms. Levels of uroporphyrin that are elevated but not five times normal are suggestive of pseudoporphyria.
  • Phototoxic contact dermatitis caused by plants often results in unusual distributions.
  • Hispanic individuals with a photodistributed rash, especially in the presence of cheilitis, may have actinic prurigo.

Dr. DeLeo is a consultant for Estee Lauder. The annual Coastal Dermatology Symposium is jointly presented by the University of Louisville and Global Academy for Medical Education. This publication and Global Academy for Medical Education are owned by the same parent company.

 

Photodermatoses are comparatively rare, and dermatologists may sometimes be reluctant to tackle them, according to Vincent DeLeo, MD, of the department of dermatology at the University of Southern California, Los Angeles, who discussed common diagnoses at the annual Coastal Dermatology Symposium.

“They’re not common bread-and-butter dermatitis, like acne rosacea. Many people feel uncomfortable trying to work out the differential diagnosis when they see someone who comes in with what either the patient or the physician thinks is a reaction to the sun,” Dr. DeLeo said in an interview at the meeting.

“Usually, the best clue is the distribution of the rash or lesion,” which often are on the backs of the hands or on the arms from the sleeves down, he added. “When you see that, you should think of a photosensitive eruption,” and consider a differential diagnosis, using “certain tests, asking questions, and looking at the morphology and distribution of the reaction.”

The most common of the photodermatoses is polymorphous light eruption, which typically occurs in people on vacation, often among those who live in temperate climates and react violently to sun overexposure. “You usually have to rule out things like connective tissue disease by getting serology,” Dr. DeLeo noted in the interview.

In general, these patients either present with a reaction or describe a rash that has since cleared up. When a patient is describing a problem that has disappeared, he or she may have a photo of the reaction on their phone, which can be helpful, he said at the meeting jointly presented by the University of Louisville and Global Academy for Medical Education.

Some photodermatoses are characterized by tell-tale rashes indicative of a connective tissue disease like lupus or dermatomyositis, which can be followed up with biopsy and serology to confirm a diagnosis, said Dr. DeLeo, who is also professor emeritus of dermatology at the Icahn School of Medicine at Mount Sinai, New York. Other patterns, such as blisters on the hands, should prompt tests for porphyria cutanea tarda, which requires a 24-hour urine test to confirm.

But reactions in sun-exposed areas can also be caused by drug-induced photosensitivity and drugs such as NSAIDs, antibiotics, and diuretics, among others, Dr. DeLeo said.



Another common reaction can occur with exposure to photosensitizing plant materials, resulting in blisters combined with altered pigmentation. Most frequently, these reactions are caused by exposure to limes, which contain psoralens that absorb light and produce the reaction. “That is a clinical diagnosis and we can recognize that because, like poison ivy, it is usually a streaky kind of reaction in a distinct pattern. You don’t need [additional] tests for that,” he said. This can occur, for example, after making cocktails, he said, describing an example of parents who had been mixing drinks and then picked up their child. Later, they brought the child to the ED with a hand-shaped rash, and treating physicians contacted social services out of fears of child abuse.

In some cases, patients who present with no rash can elicit the problem. Solar urticaria can produce hives on demand – ask a patient to go out in the sun and return after a few minutes, and a rash will generally appear, Dr. DeLeo advised.

Patients might want to take steps to avoid such problems and there are several options available to do so, Dr. DeLeo noted. There is some evidence of efficacy for photoprotection for an extract from a fern plant found in Central and South America, a product called Heliocare, in a study sponsored by the manufacturer, Ferndale Healthcare (J Clin Aesthet Dermatol. 2015 Feb;8[2]:19-23). Patients can also undergo two or three treatments of phototherapy for 3-4 weeks in advance of a trip in order to “harden” the skin and reduce the chances of an overreaction.

Dr. DeLeo presented a simplified guide to use when considering differential diagnoses in patients with photodermatoses.

  • Solar urticaria occurs quickly upon exposure and is short lived.
  • Polymorphous light eruption usually occurs during a vacation and does not affect the face.
  • A sun-related eczematous rash affecting the face, which recurs, is typically photoallergy to sunscreen.
  • A chronic, severe dermatitis seen in a photodistribution pattern could be chronic actinic dermatitis. The patient should undergo phototesting. A biopsy of a severe case may resemble lymphoma.
  • In photosensitive individuals with an uncertain diagnosis, serology testing for connective tissue disease should be performed to rule out lupus or dermatomyositis.
  • When the patient has a rash in only sun-exposed areas, as well as a history of exposure to photosensitizing drugs, the drug should be discontinued to see if the rash disappears.
  • Porphyria cutanea tarda is diagnosed with a 24-hour urine test that reveals at least five times normal uroporphyrin levels, along with hemochromatosis polymorphisms. Levels of uroporphyrin that are elevated but not five times normal are suggestive of pseudoporphyria.
  • Phototoxic contact dermatitis caused by plants often results in unusual distributions.
  • Hispanic individuals with a photodistributed rash, especially in the presence of cheilitis, may have actinic prurigo.

Dr. DeLeo is a consultant for Estee Lauder. The annual Coastal Dermatology Symposium is jointly presented by the University of Louisville and Global Academy for Medical Education. This publication and Global Academy for Medical Education are owned by the same parent company.

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